Home / 608,304.18-839,180.79-393,513.42

Finding the Fourth Proportional to 608,304.18, 839,180.79 and 393,513.42

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Solution

The fourth proportional to 608,304.18, 839,180.79 and 393,513.42 is: 542,868.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,304.18 : 839,180.79 = 393,513.42 : x
  2. Step 2: Convert to fraction form
    608,304.18/839,180.79 = 393,513.42/x
  3. Step 3: Cross multiply
    608,304.18x = 839,180.79 × 393,513.42
  4. Step 4: Simplify right side
    608,304.18x = 330,228,902,671.20
  5. Step 5: Solve for x
    x = 330,228,902,671.20/608,304.18
  6. Step 6: Final answer
    x = 542,868.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.